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Cushion|Lab Grown|IGI

1.70ct G SI1 Cushion Lab Grown Diamond

GD • G/SI1 • IGI LG478103526

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG478103526

Diamond specifications and retailer prices

From €350 EUR
$391 USD
As of November 1, 2026
Save €1,165 EUR (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,515 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.7ct lab-grown cushion diamond

This 1.7ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG478103526 or 478103526. Listed at 12 retailers as of November 1, 2026, with prices from €350 to €1,515, a €1,165 spread on the same certified stone. MOH London lists it at €1,515. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
G
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478103526
Dimensions7.13 × 6.69 × 4.59 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.13 mm6.69 mm1.70 ctG / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478103526
Side View
Table 59.5%Crown 36.5°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 68.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,515 EUR|Low: €350 EUR|High: €1,535 EUR|Avg: €716 EUR|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6€350 EUR
Retailer 9€388 EUR
Retailer 8€424 EUR
Retailer 2€497 EUR
Retailer 4€568 EUR
Retailer 10€623 EUR
Retailer 5€624 EUR
Retailer 3€692 EUR
Retailer 7€1,495 EUR
MOH London€1,515 EUR

44 data points across 10 retailers

12 retailers€350 EUR to €1,515 EUR

A
Cheapest Retailer
-
€350 EUR
$391 USD
Final sale: no returns
Retailer 2
-
€388 EUR
$433 USD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
€424 EUR
HK$3,700 HKD
View
B+
Retailer 4
-
€497 EUR
£437 GBP
View
B+
Retailer 5
-
€568 EUR
$635 USD
View
B+
Retailer 6
-
€568 EUR
$635 USD
View
B+
Retailer 7
-
€623 EUR
$696 USD
View
B+
Retailer 8
-
€624 EUR
$697 USD
View
B+
Retailer 9
-
€692 EUR
£609 GBP
View
B
Retailer 10
-
€1,285 EUR
$1,435 USD
View
C
Retailer 11
-
€1,495 EUR
$1,671 USD
View
Most Expensive
B
MOH London
LG478103526 · Nov 1
€1,515 EUR
£1,333 GBP
View
11 more retailers have this diamond
Prices start from €350 EURSave up to €1,165 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.70ct Cushion
€350 EUR